Question

A rocket is launched straight up with a speed of 12 meters per second near the surface of Earth. [Neglect air friction.]

Answer 1

By conservation of energy,

Kinetic energy of launched rocket = change in potential energy of rocket at maximum height.

→ Ig h is maximum height reached:

Answer 2

Step-by-step explanation:

H = V² / (2·g)

H = 12² / (2·9.8) ≈ 7,3 m